generally speaking, pre-authorization refers to the behavior that the cardholder consumes in a hotel, hotel or rental company, and the consumption and settlement are not completed at the same time, and the special unit asks the card issuer for authorization in advance through POS.

Pre-authorization business refers to the business in which a special merchant obtains a payment commitment from the card issuer that does not exceed a certain proportion of the pre-authorization amount within 3 days, and accepts it from the card issuer after the card holder obtains the goods or accepts the service. Generally speaking, it is the business of freezing part of the funds in the bank card as a deposit and then settling the account according to the actual consumption amount.

specifically, when a cardholder spends money in a merchant, the merchant cashier applies to the card issuer for authorization according to the cardholder's demand and the pre-estimated consumption amount, and the card issuer gives a response according to the customer's account. For the approved application, the credit limit (credit card) or deposit amount (debit card) in the cardholder's bank card will be temporarily frozen as a deposit. Generally speaking, the frozen amount cannot exceed 115% of the pre-authorized transaction amount. After the cardholder's consumption is officially completed, the merchant requests the card issuer for formal liquidation according to the actual consumption amount.